An Advanced Three-Level Active Neutral-Point-Clamped Converter With Improved Fault-Tolerant Capabilities

Authors

Ramin Katebi, Marquette University
Jiangbiao He, Marquette UniversityFollow
Nathan Weise, Marquette UniversityFollow

Document Type

Article

Language

eng

Publication Date

10-5-2017

Publisher

Institute of Electrical and Electronics Engineers (IEEE)

Source Publication

IEEE Transactions on Power Electronics

Source ISSN

0885-8993

Abstract

A resilient fault-tolerant silicon carbide (SiC) three-level power converter topology is introduced based on the traditional active neutral-point-clamped converter. This novel converter topology incorporates a redundant leg to provide fault tolerance during switch open-circuit faults and short-circuit faults. Additionally, the topology is capable of maintaining full output voltage and maximum modulation index in the presence of switch open and short-circuit faults. Moreover, the redundant leg can be employed to share load current with other phase legs to balance thermal stress among semiconductor switches during normal operation. A 25-kW prototype of the novel topology was designed and constructed utilizing 1.2-kV SiC metal-oxide-semiconductor field-effect transistors. Experimental results confirm the anticipated theoretical capabilities of this new three-level converter topology.

Comments

Accepted version. IEEE Transactions on Power Electronics, Vol. 22, No. 8 (August 2018): 6897-6909. DOI. © 2018 IEEE. Used with permission.

Recommended Citation

Katebi, Ramin; He, Jiangbiao; and Weise, Nathan, "An Advanced Three-Level Active Neutral-Point-Clamped Converter With Improved Fault-Tolerant Capabilities" (2017). Electrical and Computer Engineering Faculty Research and Publications. 300.
https://epublications.marquette.edu/electric_fac/300